Geomorphic processes and the threat of increased flooding in the Niger delta

Abstract

Geomorphic processes of bank erosion are assessed in the light of their potential to cause increased flooding of settlements along rivers. Although the dense net-work of river system and inadequate drainage capacity of the channels result in flooding in the Niger Delta, by far the most significant factor threatening the extensive flooding and disappearance of communities along rivers is accelerated bank erosion due partly to human interference with the natural drainage system. This leads to systematic destruction of natural protective levees, thus exposing settlements to flooding. It is estimated that several settlements and insdustrial installations along rivers in the Niger delata would cease to exist at their present locations after the next 25 years, if effective measures are not implemented.